BREAK-OUT ASSEMBLY FOR A DRILLING MACHINE

摘要

A break-out assembly includes a slide wrench assembly (170), and a slide wrench rotator assembly (190) which rotates the slide wrench assembly (170) in response to actuating first and second rotator assembly cylinders (195a, 195b). The first and second rotator assembly cylinders are actuated in opposed directions. The break-out assembly includes a clamp assembly (150) having opposed arm assemblies (151,152) which are rotatable about separate pivot points (202,203).